Simon Maltais, MD
NPI 1457665911ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Thousand Oaks, CA
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) with Poudre Valley Medical Group LLC and 2 other groups, practicing in Thousand Oaks, California. 75 Medicare patients in 2024, $80,999 paid; all of their 51 Part D prescriptions were generic. Abiomed was the largest of 9 companies reporting payments in 2025, $2,411 in all, mostly food and beverage. Lists Benefis Hospitals Inc and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1457665911 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 27, 2010 |
| Last updated in NPPES | May 20, 2025 |
| Certified by provider | May 20, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | 53401 | MN |
| Surgery, Vascular Surgery | 2086S0129X | MD47528 | TN |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 65433 | WI |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | MD47528 | TN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiac Surgery (CO); Practitioner - Thoracic Surgery (MT); Practitioner - Cardiac Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 75 |
|---|---|
| Services billed | 177 across 51 procedure codes |
| Paid by Medicare | $80,999 |
Part D prescriptions in 2024
| Prescriptions (claims) | 51 · 85 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $542.72 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Cardiac Surgery |
| Secondary specialties | Thoracic Surgery |
| Telehealth | Offers telehealth |
Medical groups
- Poudre Valley Medical Group LLCDenver, CO · 2,440 clinicians
- McHs Hospitals IncMarshfield, WI · 1,197 clinicians
- Great Falls Clinic LLCGreat Falls, MT · 72 clinicians
Hospital affiliations
- Benefis Hospitals IncGreat Falls, MT
- Great Falls Clinic HospitalGreat Falls, MT
- Marshfield Medical Center - WestonWeston, WI
- Northern Montana HospitalHavre, MT
- St James HospitalButte, MT
Industry payments (Open Payments)
- 2025$2,411 · 33 payments from 9 companies
- 2024$6,997 · 21 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $1,274 | 16 |
| Lemaitre Vascular, Inc. | $338.32 | 6 |
| Kls-Martin L.P. | $223.17 | 3 |
| Abbott Laboratories | $177.29 | 3 |
| W. L. Gore & Associates, Inc. | $146.40 | 1 |
What the 2025 payments were for
- Food and Beverage$2,411 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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